Hi, I hope that someone can help, I have just finished a comp and tried to render the fileout node, but it didn't work. Just no response. So I thought I'd re-start shake and re-load the when the script loaded it was blank!!
I have tried loading up on another computer but is the same and copy and pasting the script in textedit in to a new doc didn't work either. Adding the script into a new shake doc also didn't work 
In the console these errors appeared:

Those lines are:
line 530:
IMult2 = IMult(Keylight2, RotoShape3, 1, 100, 0);
line 580:
Median11 = Median(Primatte_v23, "rgba", 1, 0);
HELP!!